Numpty >>
tuesday january 5 - 20:55, Edited
tuesday january 5 - 21:48 No it's not. Just concentrate on building your own popularity.
You can fill Stadium 11 even against bots with around 9 million. And it doesn't always have to be full to be worth building. I would suggest even an average of 75% full makes it worthwhile, maybe less.
The moral is to bring your own fans and don't rely on someone else filling your stadium.
Edit
I did the calculations for this a while back.
The higher ticket price for Stadium 11 pays for the extra maintenance costs on the first 120,000 attendance. So if you can already fill Stadium 10 then Stadium 11 pays for itself. Anything more than 120,000 will be extra income.
The only issue is the construction costs. If your balance falls below the maximum allowable interest then that has to be accounted for with extra attendance above the 120,000. An average attendance of 150,000 (75% full) is more than enough.